Childhood its the most important and loving part of everyone's life. Its the lessons you learn and the events or moments you experience during your childhood make you a person you are today. There is a Malayalam proverb which means 'The habits of the childhood will remain till the funeral pyre'. So it applies to whatever you learn or experience too. For example your relationship can also be broken one if you have seen your parents fighting. The childhood teaches you trust, compassion, anger management etc. So its not only the genes which play an important role in ones character molding. The environment surrounded by you in your growing stage also plays a vital role in your character formation.